<!-- catalog/templates/catalog/pagination.html -->
{% if is_paginated %}
<div class="pagination">
  <span class="step-links">
    {% if page_obj.has_previous %}
      <a href="?page=1">&laquo; 首页</a>
      <a href="?page={{ page_obj.previous_page_number }}">上一页</a>
    {% endif %}

    <span class="current">
      第 {{ page_obj.number }} 页 / 共 {{ page_obj.paginator.num_pages }} 页
    </span>

    {% if page_obj.has_next %}
      <a href="?page={{ page_obj.next_page_number }}">下一页</a>
      <a href="?page={{ page_obj.paginator.num_pages }}">末页 &raquo;</a>
    {% endif %}
  </span>
</div>
{% endif %}